Obtain domain/IP registration information
For a computing resource to be accessible to the public, domain names and IP addresses must be registered with an authorized organization.   
Detectable by Common Defenses (Yes/No/Partial): No
Explanation: Open access to DNS registration/routing information is inherent in Internet architecture.
Difficulty for the Adversary
Easy for the Adversary (Yes/No): Yes
Explanation: Proliferation of DNS information makes registration information functionally freely available.
- Google Domains. (n.d.). About WHOIS. Retrieved April 2, 2017.
- Jeff Bardin. (2012, October 10). OSINT and Cyber Intelligence - Fun and Sun in Miami. Retrieved March 1, 2017.
- Gregory Scasny. (2015, September 14). Understanding Open Source Intelligence (OSINT) and its relationship to Identity Theft. Retrieved March 1, 2017.